pH and H Plus

When an acid and base has been neutralized the pH will be?

• 1

• 4

• 7

• 10

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A solution has a pH of 7.0.  What would happen to the pH if H ions were added?

• pH would go up

• pH would go down

• pH would stay the same

• None of these

If the pH of a solution is 5 the [H+] is

• 0 x 10⁵  M

• 0 x 10⁹  M

• 5.0 x 10¹  M

• 0 x 10^-5  M

Which of the following pH values represents a base?

• 2.1

• 4.6

• 6.8

• 8.1

If the [H+] of a solution is 1 x 10^-2 mol/L the pH is

• 2

• 12

• -2

• 1

If a solution has a [H⁺] of 9.3x10^-11, what is the pH?

• 10.0

• 4.0

• 3.5

• 8.2

If the [H+] of a solution is 6.8 x 10^-9 mol/L the pH is

• 8.17

• 8.2

• 9.99

• 8.62

A solution has 1.0 x 10^-8 M hydronium ions. Another solution has 1.0 x 10^-3 M hydronium ions. Which solution has a larger number of hydronium ions? Hint this solution is an acid.

• 1.0 x 10^-3 M hydronium ion solution

• 1.0 x 10^-8 M hydronium ion solution

• Neither solution is an acid

Tags

NGSS.HS-PS1-5

If the hydronium ion H₃O⁺ concentration is equal to the hydroxide ion OH^- concentration, the solution is a(n)

• acid

• base

• salt

• neutral solution

• 7

• 0

• 14

• 1